Lateral-motion device for railway-trucks.



1H.' E. VAUGHAN.- LATBRAL Mofnounsvw rox mmm TRUCKS. APPLIOATIQN FILED SEPT. 22,1913. 1,099,891, l Patented June 9,1914.

2 SHI;BTssHEBT 1.

f H. VAUGHAN. I'LATERAL MoTIoN nEvloE PORRAILWM TRUCKS.

1,099,891;l Patented June 9, 1914. y 2SHEBTS-SHBBT 2.

APPLICATION FILED SEPT. 22,1918.

UNIED srarns HENRY H. VAUG-HAN, GF MOTREAL, QUEBEC, CANADA.

LATERAL-MOTION DEVICE FOR 'RAIL7i/AYTRUCKS.

.Montreal, inthe countyof Hochelaga, Province of Quebec, Canada, have invented eertain new and useful Improvements in Lateral-Motion Devices for Railway-Trucks;

-and l do hereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the -art to which it appertains to make and use the same.`

My present invention has for its object to provide a simple and eli'icient lateral motion device for railway trucks; and to such ends, generally stated, the invention consists of the novel devices and combinations of de vices hereinafter described and defined in the claims. l f

rlhis application is in the nature 0f an improvement on, or modification of the lateral motion device disclosed and claimed in my (impending application, Serial Number flllll, filed of date, September 22, i913, and entitled Lateral motion device for railway trucks.7`r In my said co-pending application, the said lateral motion devices involve opposed wedge plates, so-called, having reverselv inclined oblique surfaces for direct frictional engagement. In practice, this direct frictional engagement between tlieeblique surfaces of the wedge plates wasv found to give the desired normal stability, thatis, resistance against lateral movements ol `the truck body, in respect to the truck wheels. coml'iined with a frictional yielding action serving to prevent excessive pressure oi the wheel flanges against the rails under considerable lateral stress, such, for instance, as produced in traveling curves at high speed. However, for some purposes,

or in some applications oie-this lifrictional lateral motion device, it has been found that tooA great frictional resistance to lateral movements of the truck body, in respect to the truck wheels,` results, when the entire load is carried on the directly engaging frictional' surfaces of the opposed wedge plates. To reduce the friction in such lateral motion devices l combine anti-friction rollers or'elements and coperating diverging roller engaging surfaces. with directly engaging in' clined or convergingilirietional surfaces of the wedge plates.

specification of Lette-is raient.

Patented June 9, 1914.

Application tiled September 22, 1913. Serial N o. 791,062.

In the accompanying drawings which illustrate the invention, like characters indieate' like parts throughout the several views.

Rejrring to the drawings: Figure 1 is a fragmentary view in side elevation, with ksome parts broken away and with some parts sectioned, showing one of my improved lateral motion devices applied to a tender truck; Fig. 2 is a transverse vertical section taken on the line m2 m2 on Fig. l; Fig. 3 is a plan view of c'ertain o1" the parts shown in Fig. l, somefparts being removed; Figt is a perspective view showing one of the wedge plates of the lateral motion device; -F ig. 5 is a view ehieliy in side elevation, but with some parts sectioned and some parts broken away, showing my improved lateral motion device applied between the sideirame and truck bolster ot' a car; and Fig. Gis a transverse vertical section taken approximately on the line a1 :no on Fig. 5.

lcicrrinff first to the construction illustrated in l* l to 4, inclusive, which illustrate the im proved lateral motion device applied to a tender truck. the numeral l indi Cates the liournal box, the numeral Q the journal box pedeslals, the numeral 3 the top bar ol the trucl side i'rame, and the numeral 4 the equalizer or equalizing bars. The journal boxes I .are mounted for vertical movements but allowed a restricted amount of lateral movement. in respect t0 the pcdestals between which they work. The top hars il are rigidly secured to the up per ends oi' the pedestals 2 by nut-equipped bolts* 5, or other means. The equalizing bars 4 support the truck springs in the usual, or any suitable way. not shown.,l

Usually, they are arranged in pairs and .seated at their ends on the top of the journal boxes. In the. present instance, however, my. improved lateral motion devices are interposed between the journal boxes and the ends ofthe said equalizing bars, and each such lati-,rat motion device, cmprises a lower wedge plate (i and an upper wedge plate 7. the -former of which, as shown, are' vanchored'onhthe tops of the journal boxes, by meansofdoivelpins Tf?, andthe latter ofvvhich are provided with top channels in which .the ends ol .the equalizing `bars l are seated and held against lateral movement vv'ith 'respect to the pedestals 2.; `The Ysvnreversely incined friction suaces, and l ntestmony whereof ax my sgnature with separated reversely ncned roller enin piesence of two witnesses. v

gagixg Surfaces the said 'ictona and roller HENRY H VAUGHN engaging surfaces having the same incline, I and a roller nbalposed between said Wedge 1Witnesses:

plates and directly engaging the said miler GORDON C. Comm, engaging surfaces thereof. HLLLAM J. C. HEWETSON. 

